JavaScript推不适用于键值对

Question

I am trying to add a key value pair to array called dataxx such as {x:1,y:2},{x:2,y:3} etc. However when I try dataxx.push it doesnt seem to be working - any ideas why or how else I can push to the array?

var dataxx= [{x: 0, y: 0}];

    $( document).ready(function (){
        $.ajax({
            type: "GET",
            url: "https://demo8162910.mockable.io/json",
            dataType: 'jsonp',
            jsonp: true,
            jsonpCallback: "myJsonMethod",
            error: function(){
                alert( 'Unable to load feed, Incorrect path or invalid feed' );
            },
            success: function(data){

                for (i in data)
                {
                    dataxx.push({x: 4, y: 5});
                    //$( "#postlist" ).append(data[i].id);
                }   

                //alert(dataxx);


            }});
    });

Answer 1

i have just add one line of code to see object your code is working fine

var dataxx= [{x: 0, y: 0}];

$( document).ready(function (){
    $.ajax({
        type: "GET",
        url: "https://demo8162910.mockable.io/json",
        dataType: 'jsonp',
        jsonp: true,
        jsonpCallback: "myJsonMethod",
        error: function(){
            alert( 'Unable to load feed, Incorrect path or invalid feed' );
        },
        success: function(data){

            for (i in data)
            {
                dataxx.push({x: 4, y: 5});
                //$( "#postlist" ).append(data[i].id);
            }   

            console.log(dataxx);/*object is here */


        }});
});